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1994 tempo 2.2litre-Idle is very high. How do I adjust it?

My idle is way too high. I am having trouble figuring how to adjust it lower.

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  • Rollin Miller Jan 19, 2013

    I guess it's a 2.3 or 2.2.

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  • 373 Answers

This is not adjustable. You have a vacuum leak, or a bad intake maniflod gasket. To test this , start engine, and spray some engine cleaner directly on the intake manifold gasket. If there is a change in the idle, the gasket is shot. Also spray all the vacuum hoses you can see. This is a great way to determine what is bad, but knowing ford tempos, 2.3, I'd say the gasket is bad. Good luck, let me know how you make out

Posted on Jan 19, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

fastboyz
  • 674 Answers

SOURCE: 1996 grand am with high idle

you need to look around a listen with the engine running for a vacuume leak. could be just a hose that came off or a cracked hose or cap missing
good luck
paul

Posted on Oct 25, 2008

  • 1 Answer

SOURCE: 1994 Cadillac Eldorado Northstar High idle

I am not sure if this will help you but PO27 is listed as "Open Throttle Signal Switch" which could mean that your throttle position sensor needs replacing. Although with Cadillacs, it could mean anything. I hope this helps...

Posted on Feb 03, 2009

dennymulford
  • 1055 Answers

SOURCE: adjusted idle screw - still idles high - what else

sounds like you have a vaccume leak

Posted on Mar 30, 2009

junit80
  • 81 Answers

SOURCE: 1994 Tempo when in Park or Neutral the idle goes really hig

replace the ics idile control sensor

Posted on Jun 18, 2009

mobilityGo
  • 68 Answers

SOURCE: High Idle

scrap it treat yourself to a newer car you only live once x

Posted on Dec 07, 2009

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first you have to check for any vacuum leaks as this can cause high idle.then you need to check the idle control motor on the intake by the throttle body.remove it and check for debris that could be holding the motor in the wrong position.check the 2 holes in the intake were it sits for debris and clean both.also check the throttle plates as they may be held open slightly(throttle cable not releasing to full closed)clean the throttle plate as well.if these check out then the idle air control motor may have an internal electrical problem or the computer is getting a wrong signal and commanding the motor to allow a higher idle than what is needed.you need to see if there is a code in the computer and have the readings looked into to see if it will show the area of the problem.has someone tried to adjust the idle speed stop screw as this can also cause a problem with high idle as there is a correct way to adjust this if needed(rarely required)

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How do you lower the idle


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Trouble Code description


Code 46 is indeed the trouble code for the Idle Speed Controller which is that big black box thingy on your throttle body. A lot of Chilton-type manual books omit that code because the ISC isn't found on pre 94 Metros. The ISC is a computer controlled auto-adjuster for the engine idle.

An important note: code 46 is often caused by misadjusted distributor timing. As you probably know, timing affects the idle, and if improper timing moves the idle beyond the ISC's adjustment range, the check engine light will come on and diagnostics will return code 46.

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